Cylinder printing-machine



(No Model.) a Ameets--sheet 1;

l W. SCOTT.

CYLINDER PRINTING MACHINE.

No. 322,132.v

Patented July 14,Y 1885.

N. PETERS, FhMo-Llhngrupher, Washingiun. D. C.

3 Sheets-Sheet 2.

(No Model.)

W. SCOTT. CYLINDER PRINTING MACHINE.

No. 322.132. Patented July 14.1885.

I l l l l l I l I l l I I|||IIIIJ N. PETERS. PhutLilhogrnphar. Wallngon. D. C.

(No Model.) 3 sheets-sheet 3.y N

W. SCOTT. CYLINDER PRINTING MACHINE.

No. 322,132. Patented July 14, 1885.

@M /M Wwf e?? N. paens, murunhognpher. wuhingmox;

NUNMED STATES PATENT Ormea.

WALTER SCOTT, OF PLAINFIELD, NEW JERSEY.

CYLINDER PRINTINe-lvmol-lINE.`

SPECIFICATION forming part of Letters Patent No. 322,132, dated July 14, 14885.

` Application filed June 2, 1884. (No model.)

To all whom it' may concern:

Be it known that I,VALTER SoOTT,of Plaineld,in the county of Union and State of Newv tion by the attendant, whenever required, and

the rack upon the bed that gears into the wheel at the end of the impression-cylinder is raised and lowered automatically, so that the same maybe entirely free from the impression-cylinder gear upon the return movement; but while the printing takes place the tecth'of the rack and gear are together, and the proper relative movements are insured. This last-named feature of my invention renders it unnecessary to use a segmental gear upon theimpression cylinder, lessens the extent of rise-and-fall motion to the impressioncylinder, and allows for the rack-teethvbeing of a size and pitch corresponding to the other teeth of the gearing, so that inaccuracies result-ing from differences in the sizes of the teeth are not likely to arise.

In the drawings, Figure 1 is a side view showing portions of the frame of lthe press and ofthe actuating-gearing. Fig. 2is an elevation of part of the frame and the mechanism at the opposite side of the press to Fig. l. Fig. 3 is a vertical section through the frame and mechanism at one side of the press for raising and lowering the impression-cylinder. Fig. 4 is an elevation of the gearing at onc end of the impression-cylinder. Fig. 5 is an elevation,inla rger size, of the gripper devices at the end of theimpression-cylinder, and Fig. 6 is a plan of the same.

The frames A, the bearers B for the rollercarriages G, the type-bed D, and the crossgirts connecting the frames are to be of any desired character; but they are made with reference to the reception of the parts hereinafter described.

The impression-cylinder F is upon the shaft a, and the power is applied to the shaft b and transmitted through the gears G H K to the shaft of the impression-cylinder, and by the gears L M N N to the shaft o. The shaft of the impression-cylinder makes two revolu` tions to one revolution of the shaft o.

The gearing that transmits motion to reciprocate the bed D may be of any desired character, and is not shown in the drawings.

Upon one end of the impression-cylinder is the gear-wheel e,gearing into the rack c2 upon one side of the bed. This rack e2 is at the top edge of a vertical plate el, the ends of which are received into the vertical guideslides ethat are bolted to the edge of the bed, so that this platel e3 and its rack can be raised and lowered bodily in such guide-slides, and one of these guide-slides is slotted for the reception of the attaching-bolts, so that the slide may be adjusted to compensate wear.

Upon the under edge of the bed D there are bearingsf for the axes or pivots of the toggle links g, and the links g and g are connected by bolts, which also connect the ends of the link g2, and the upper ends of the links g are pivoted to the rack plate c3. The axes or pivots passing through thebearings fare provided with crank-arms h It. The arm, axis, and link are made in one or permanently attached together; hence it will be 'understood that when either arm 7i or h' is moved the whole of the toggle-bars are swung and act to either raise or lower the rack-plate and rack.

Near one end of the press I place an incline or compound curved cam, k, and near the other end of the press a similar cam, 7c. The

crank-arm h of the -forward pair of toggle-r links projects forward and runs under the cam la', and in so doing the toggles are swung and the rack lifted into the position shown by full lines in Fig. l. In this position the rack is adapted to gear into the teeth of the wheel e', and moves with the same while the impression is being made. After the impression has been made and the bed arrives near the end of the stroke, the crank-arm h, which had been raised by the depression of the crank-arm It', runs under the incline 7c, and the toggles are swung into the angular position shown by dotted lines, Fig. l, and the rack-bar is pulled down, so as to return beneath the wheel e and without touching the same. It will be seen by the full lines in Fig. l that when the crank-arm h is pressed down by the incline 7c the toggles are straightened to raise the rack, and they are moved slightly past the straight line and their further movement is limited by a stop, k3,- hence pressure on the rack will not swing the toggle, and the rack is firmly held in an elevated position.

The journal-boxes Z of the impression-cylinder are Vbolted together, and they can be raised or lowered inthe slide-bearings Z in the frame A. Below the lower halfjournal-box thereis a downward-projecting knuckle formed with or attached to said boX, and through this the joint-bolt Z2 of the links Z3 Z'1 passes.

There is a cross-piece, m, in the frame A, and through this the vertical screw u passes and extends up to the under side of the knuckle upon the journal-box. There is a screw of this kirid at cach side frame, and by it the impressioncylinder is adjusted, so that it cannot descend too far and make too heavy an impression.

Each screw a has a lock-nut, 10, to hold it iirmly when adjusted, and around each screw is a sleeve, a2, sliding through the cross-bar a3 of the frame, and there is an expansive helical spring, at, around the screw n, the upper end of which rests against the lower end of the sleeve n2, and the lower end rests upon a disk, ai, that is screwed upon the screw n and provided with a lock-nut.

By adjusting the disk a5 the strength of the spring is varied, and the weight of thevimpression-cylinder sustained to whatever eX- tent desired, sc that the cylinder may be raised without undue strain upon the operating parts.

At the lower ends of the links Z3 ZL there are eyes that pass over the cylindrical end porltions ofthe pin o', and these end portions are in line with each other, but eccentric to the central body portion of such pin 0'; hence, iithis pin 0 is partially revolved, the eccentric end portions, acting upon the links Z"s Z4, will raise and lower the journal-boxes of the impression-cylinder.

1t is to be understood that the parts described are duplicated, and that the links and eccentric pin and means for partially rotating the same are provided at both sides of the press.

The shaft 0 has upon it the cams p, and these are made to oscillate the three-arrned levers, one at each side of the press. The arms r r and r2 compose each a three-armed lever, and it swings upon a gudgeon or pivot, r3, up on the inside of the frame A, and it is preferable to employ a fourth arm, r4,with an enlargement or counter-weight. The arms o and r are provided with rollers, against which the cams p act. These cams are arcs of large and small circles of about one hundred and thirty degrees, with intermediate curved inclines, and hence the three-armed levers are held in the position, shown in Fig. 2 during the larger portion of the travel of the bed in one direction, and when their positions are reversed they are again held in that position during the larger portion of the travel of the bed in the other direction, the changes taking place during the stopping and starting of the bed at the extremes oi' its movement.

Upon each eccentric-pin o' there is a crankarm, o2, securely attached, and the link s is connected to the crank-arm o2 by a crank-pin projecting from sai/d arm o2, and said crankpinV passes through the upper part of a slot formed in the end of the link s, and in this slot, below said crank-pin, there is a spring, as seen by dotted lines in Fig. 2.

There is a rock-shaft, s', extending across between the frame A, and upon it is an arm, s2, to which is connected a rod, and an expansive helical spring, sf, surrounds the same and acts between a nut on said rod and the eye s to press the arm s2 away from the eye. The arms s2 are connected by links t to the links s, and there is a similar arm and link" at each side of the machine. The links s are notched at opposite sides, one notch at, 15, being adapted to receive a pin at the end of the arm r2. The other notch, 16, is for holding the parts when the impression is thrown off, as hereinafter explained.

It will now be understood that when the three-armed rocker-levers are moved in one direction a downward end motion is given to the linkss, and these, acting upon the cranks o?, turn the eccentric-pins o and raise the links Z3 Z4, the journal-boxes, and the impression-cylinder, and this is to be done after the impression has been made and before the return-stroke of the bed. When the motion is given in the other direction, the link s is ,lifted, and the impression-cylinder is lowered to be in position to give the impression before the bed commences to move in the other direction. In the aforesaid movements, when the links s are being moved downwardly they act directly uponthe crank-pins of the arms oZ to give a positive motion, and when the links s are being moved upwardly, as aforesaid, the springs in the slots at the lower ends of the links sact against the crank-pins of the arms 02,- hence if the rotation of the eccentricpins 0 is stopped in consequence of the journal-boxes resting upon the screws n the springs will be compressed if the upward movement of the links s should be continued for a small distance by the action of the levers.

Upon the end of the` shaft s near the platform T, upon which the attendant stands to feed the paper, is a crank-arm, s, and a vertical rod S5, and foot-piece.

Upon the shaft s is a third crank-arm, s, with a roller or stud at the end, and this is adjacent to the shell-cam s on the shaft o. This shell-cam is an arc of a circle of about IOO IIO

three hundred and thirty degrees, and inits -normal position .the pin 50 of the end of the arm s6 is inside this shell-cam; hence when the feeder puts his foot upon the foot-piece S he cannot move the same until the end of the shell-cam passes away from under the crankpin 50 of the arm s6. The rocking movement now given to the shaft s causes the arm s2 to compress the spring s3, and the links t to carry the links s away from the studs L at the ends of the arms r2, and in this manner disconnect the links s from such arms, and allow the arms r2 to vibrate or oscillate without moving the links s. v

The parts are so made and timed that thev separation ofthe links s from the arms 1' can only take place at the time theV links are depressed by said 4arms r2, and the action of the cams p and impression-cylinder is elevated; hence the impression is thrown off, and although the other movements continue the impression cylinder is sufficiently above the types to prevent injury to such types from any of the causes arising in printing,

To steady the links s,and to prevent the im-` pression-cylinder descending in consequence of its weight or otherwise, l provide the studs `55 upon the frames A, upon which thelinks `s are hooked.

The studs 55 are in such a position that when the impression-cylinder has been raised and the links s have been moved downwardly in so doing the notches 16 in the' links s are opposite said studs 55; and at this' moment the shell-arm 87 passes from beneath the pin 50 on the arm s, and if the impression is to be thrown off the foot-piece S5 can now move downwardly and partially rotate the shaft sby the arm s4, and by the lever s2 and link t the link s is pushed off the stud 15 at the end of the arm'r, and the slot 16 in the lever s passes upon the stud 55. Then the press-feeder removes his foot from the footpiece S5, the spring presses the arm s2, and

keeps the pin 50 of the lever-arm s against the outside of the shell-cani S7, and as soon asl such cam revolves clear of the pin 50 the spring oscillates the rock-shaft s', and by the arms s2 and links t draws the links s off the pins 55, and causes the slots' 15 to again receive the pins at the ends of the crank-arms o, and the parts are restored to their normal positions, and all the movements of the press are harmonious.

There is an eccentric sleeve, P, that receives each pin o,and the iianges P at the end of t-he sleeve Vrest against the surface of the frame, and its edge is notched. By turning this eccentric sleeve the action ofthe parts will be adjusted so as to raise or lower the impression-cylinder to the desired point, and a screw inserted into the frame through one of the notches holds the sleeve from turning.

Upon the irriprcssion-cylinderv is the shaft n, carrying the gripper o', and at the end of the shaft is a pinion, n2, that gears into the teeth of the sector c3, which is pivoted at 20 to the cylinder, and provided with an adjustasion-cylinder: rlhe cam 23 is pivoted at 24 and it has a crank-arm, 25, to which is connected the rod and spring 26, which tend to swing the cam 23 out of the way of the roller 27 upon the sector-arm v3,- but the cam 23 near its pivot 24 is sufficiently large to open the grippers slightly every time the roller 27 passes around; hence the grippers of the transfercylinder or other delivery apparatus will take off at this time the advancing end of the printed sheet, but the grippers will close and relnain closedas they pass beneath the feedboard w, and hence will not take any sheet at this revolution ofthe impression-cylinder, but` .at the next revolutionvof the impression-cylinder the upper end of the @am 23 is lifted and y,

the cam swung into the path of the roller 27, so that it opens and reverses the grippers, and they pass under the feed-board to close `as theyelnerge from beneath the lower edge of the sheet in the usual manner. f To effect this swinging movement ofthe cani 23, I make use of the eccentric 30 upon the shaft 31, acting against the arm and roller 32 projecting at the side of the cani 23, and this shaft 31 is supported upon an auxiliary frame, A2, above the frame A, and the gearN2 on the shaft 31 is driven byl a gear, W3, of half the size upon the shaft c of the impression-cylinder E, so that the eccentric or cam 30 moves the swinging gripper-cam 23 into the path of the roller 27 upon the sector-arm t3 to operate the gripper every second revolution ofthe impressioncylnder E, and the spring n* forces said cam 23 out of the path of the roller on the sector- 'IOC arm at the next revolution; or'the parts may move by their weight, so that the sheet is taken at one revolution, and the giippers `pass by shut at the next revolution.

ln order to determine the position of the lower edge ofthe sheet,I make use of the cross- `shaft 40 upon which are two or` moretubes,

lroller 7() and link 46, and partially revolve the shaft 40 and raise the gage 43 at the moment before the grippers close, so-as to lift y the gage ont of the way of the sheet as it is drawn oif the feeding-table.

All the novel and patentable devices and combinations herein described and shown are my invention. The following is a summary of the devices and combinations of deviices which I now understand and am advised should be expressed in claims for the proctcction of the aforesaid invention.

l do not claim a press in which the links that raise and lower the impression-cylinder are adjustable in their length and regulate the distance to which the cylinder is lowered to give the impression.

I claim as my inventionl. The combination, with the reciprocating bed, the impression-cylinder and its gearwheel, of the rack and rack-plate, guides secured upon the bed and in which said rack u and plate can be moved vertically, and mechanism, substantially as set forth, for elevating the rack in its relation to the bed at or near the termination of the movement of the bed in one direction, and for depressing it at or near the termination ofthe movement in the other direction, substantially as set forth.

2. The combination,with the printing-press bed, an impression cylinder and its gearwhecl, of a rack upon the bed, slides supporting the rack, toggle bars pivoted together and to the bed and rack, respectively, andV means, substantially as specified, for moving the toggle-bars at the ends of the reciprocations ofthe bed to raise and lower the rack, substantially as set forth.

3. The combination, with the bed and the rack, of the slides for the same, the toggle-bars connected together and to the bed and rack, and the arms and stationary cams for moving the same, substantially as set forth.

4. The combination, with the impressioncylinder and mechanism,substantially as specified, for raising and lowering the same, of adjusting-screws n passing vertically through the frame m, and by which the downward movement of the journal-boxes of the impressioncylinder is arrested, the adjustable springs n", the sleeve n passing through the frame n3, and disks n around the screws to adjust the springs for partially counterpoising the impression-cylinder, substantially as set forth.

5. The combinatiom'with the impressioncylinder and its shaft and journal-boxes fitted to slide vertically inthe frame, of a pin passing through the lower part of each journalboX, links connected at their upper ends by such pin at the outer and inner sides of such journal-boxes, pins passing through and supported by the frame with eccentric ends to which the links are connected at their lower ends, and cams, arms, and levers for partially rotating the pins and moving said links and raising and lowering the impression-cylinder, substantially as set forth.

6. The combination, with the impressioncylinder, journal-boxes, links Z3 Z4, eccentricpins o and the joint-bolts l", of the crank-arms o2, notched links s, the rocker-arms r fr r2, and the cams p, and cam-shaft o for actuating the same, substantially as set forth.

7. The combination, with the impressioncylinder, and the eccentric pins and links for raising and lowering the same, of the crankarms o2 and links s, the three-armed rockerlevers r r r2, the cams p for moving the same, the cross-shaft s, the arms and connection to the foot-piece, the link t between the arm s2 and the notched link s, and the spring s3 acting upon the arm and cross-shaft, substantially as set forth.

. 8. The combination, with the notched link s and the foot-piece, links and arms for disconnecting the same from stud 15, of the impression-cylinder, the linksZ3 l, the pins with their crank-arms, and the stud 55 for holding the notched link when the impression is thrown off, substantially as set forth.

9. The combination, with the foot-piece and levers for throwing off the impression, of the shell-cam to determine the time when the footpiece and levers are allowed to operate, and the impression-cylinder and the eccentric pins and links for raising and lowering the same, substantially as set forth.

l0. The combination, with the impressioncylinder and its journal-boxes, of the links connected to the journal-boxes, the pins with eccentric ends, and the adjustable eccentric sleeves that receive such pins and by which the impression-cylinder is adjusted, substantially as set forth.

ll. The combination, in aprinting-machine, with the imp ression-cylinder and its grippers, and the eccentric pins and links for raising and lowering the cylinder, of a cam, 30, a shaft, rco f 3l, for the same, a gear-wheel, N2, upon said shaft, and a gear-Wheel, W3, upon the shaft of the impression-cylinder, whereby the cam 30 is revolved once for every two revolutions of the impression-cylinder, acam, 23, operated 105 by the cam 30, a sector and pinion for moving the grippers, the same being acted upon by the cam 23 every second revolution of the impression-cylinder, substantially as set forth.

Signed by me this 29th day of May, A. D. IIO

WALTER SCOTT.

Witn esses GEO. T. PINoKNnY, WILLIAM G. MoTT. 

